Ntau tshaj 99% ntawm cov kab mob hauv dej raug tua tag nrho tom qab nkag mus rau hauv cov kav dej tooj liab rau 5 teev

Copper yeeb nkab kev noj qab haus huv thiab kev tu cev
Cov kav dej tooj liab tsis muaj ntau yam tshuaj lom neeg xws li kev hloov kho, cov khoom siv ntxiv, thiab cov khoom siv ntxiv ntawm cov kav dej yas.
Kev tshawb fawb txog keeb kwm qhia tau hais tias E. coli hauv cov dej tsis tuaj yeem txuas ntxiv mus txuas ntxiv hauv cov kav dej tooj liab; Ntau tshaj 99% ntawm cov kab mob hauv dej raug tua tag nrho tom qab nkag mus rau hauv cov kav dej tooj liab rau 5 teev.
Cov qauv ntawm cov yeeb nkab tooj liab yog qhov ntom ntom thiab impermeable. Tsis muaj cov khoom phom sij xws li roj, kab mob, kab mob, oxygen, thiab ultraviolet rays tuaj yeem dhau los ntawm nws thiab ua rau cov dej tsis zoo.
Tsis tas li ntawd, cov kav dej tooj liab tsis muaj cov tshuaj ntxiv thiab yuav tsis hlawv kom tso cov pa phem uas ua rau neeg tuag taus. Kev rov ua dua ntawm tooj liab yog qhov muaj txiaj ntsig zoo rau kev tiv thaiv ib puag ncig thiab yog cov khoom siv ntsuab rau kev tsim kho kom ruaj khov.